6593998644 has 48 divisors (see below), whose sum is σ = 17128386240. Its totient is φ = 2193778080.

The previous prime is 6593998643. The next prime is 6593998667. The reversal of 6593998644 is 4468993956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6593998643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1887 + ... + 114854.

It is an arithmetic number, because the mean of its divisors is an integer number (356841380).

Almost surely, 2^6593998644 is an apocalyptic number.

It is an amenable number.

6593998644 is an abundant number, since it is smaller than the sum of its proper divisors (10534387596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6593998644 is a wasteful number, since it uses less digits than its factorization.

6593998644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117277 (or 117269 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 63.

The square root of 6593998644 is about 81203.4398532476. The cubic root of 6593998644 is about 1875.2087370812.

The spelling of 6593998644 in words is "six billion, five hundred ninety-three million, nine hundred ninety-eight thousand, six hundred forty-four".